TB-500

What is TB‑500 API (Thymosin Beta‑4 Peptide)?

TB‑500 Peptide: 5 MG, TB‑500, TB‑500 Peptide: 5mg and similar TB‑500 peptide products represent synthetic peptide API material derived from the active fragment of Thymosin Beta‑4 (a naturally occurring protein involved in tissue repair). These are research‑grade materials intended for laboratory use only, not for human or veterinary use or consumption.

Chemical & Structural Details

Name: TB‑500 (Thymosin Beta‑4 fragment)
Type: Synthetic peptide research API / lyophilized powder
Molecular Formula: C₂₁₂H₃₅₀N₅₆O₇₈S
Molecular Weight: ~4,963 Da
Peptide Length: 43 amino acids (with key actin‑binding motif)
Sequence: Contains critical “LKKTET” actin‑binding domain
CAS Number: 77591‑33‑4 (peptide fragment)

TB‑500 is produced via solid‑phase peptide synthesis (SPPS) and purified to high‑purity levels (typically ≥99% by HPLC) for reproducibility in experiments.